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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1817794Generated: October 30, 2026

Sodium Pyrosulfite → HCID 86614376, compound

https://huagongshe.com/reaction/1817794

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium PyrosulfiteHCID 656671—
Reactant4-{2-[Methyl(pyridin-2-yl)amino]ethoxy}benzaldehydeHCID 10422546—
SolventWaterHCID 962—
ProductHCID 86614376HCID 8661437677.4%

Reaction Conditions

Temperature15 °C

Reaction Steps

4-[2-(N-methyl-N-(2-pyridyl)amino)ethoxy]benzaldehyde (10 gms, 0.039M) was stirred with industrial spirit (150 ml) and cooled to 15° C. A solution of sodium metabisulphite (11 gms, 0.057M) in water (20 ml) was added drop wise to the above solution over a time period of about 15 to 20 minutes, whilst maintaining the temperature below about 20° C. The reaction mixture was further cooled to 10° C. and stirred for 1 to 2 hours. The resulting precipitate was then filtered and washed with industrial spirit (25 ml×2) followed by water (25 ml). The solid obtained was then dried in a vacuum oven at 40° C. to obtain the title complex (10 gms, HPLC purity 98.5%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07598387B2
Source datasetuspto-grants-2009_10
ORD IDord-01f1e0e39e774832abd4d64e8c946966
Source noteuspto-grants-2009_10